Finding the Fourth Proportional to 118,456.62, 163,469.73 and 64,741.62

Step by Step Solution

1. Step 1: Write the proportion equation
   118,456.62 : 163,469.73 = 64,741.62 : x
2. Step 2: Convert to fraction form
   118,456.62/163,469.73 = 64,741.62/x
3. Step 3: Cross multiply
   118,456.62x = 163,469.73 × 64,741.62
4. Step 4: Simplify right side
   118,456.62x = 10,583,295,141.16
5. Step 5: Solve for x
   x = 10,583,295,141.16/118,456.62
6. Step 6: Final answer
   x = 89,343.21